watching a football game 当然这只是个短语 如果你想要的是一句话的话 可以自己自由发挥 例如 i am watching a football game.等等
Watch a football match.
watch a football game.
Watch a football match/game.
楼上的片面， 只有在中国大家才说:a football match 或者 a football game那要是美国人心中的足球（即橄榄球），就是：a rugby match 一场英式橄榄球比赛

match英[mætʃ]美[mætʃ] n.比赛; 火柴; 对手; 相配的人（或物）;vt.相同; 适应; 使较量; 使等同于;vt.使相配，使相称;[例句]He was watching a football match他正在观看一场足球比赛。 [其他]第三人称单数：matches 复数：matches 现在分词：matching过去式：matched 过去分词：matched

1、There have been many writers who used their pens to fight with the wrong things. 2、It seems every minute of this joke was cloned3、There are a lot of people watching the football match 4、At Qianmen Street is a pedestrian street,but there is a cable car to take you to the shops,teahouses and theaters

watch the football match

watch，onto，golearn by yourselvesstand，drinkprove through investigation
watchon to visit
watch on to visitcan learn tostand drinking to find out
我们经常在电视上观看足球赛。 We often (watch ) soccer games on TV.分析：1、看比赛用：watch ； 在电视上用:on2、often 常与一般现在时连用， 主语是复数，所以实义动词watch 不变。拓展：1、 read 指看书/报如：He often reads newspapers in the morning .他早上经常看报纸。2、see 指看见或看不见； look 指有意识地看，后跟宾语时要用at连接。如：He looks at the blackboard ,but he doesn't see anything .他看上黑板，但他什么也看不见。4、watch 指看比赛，看电视如：He always watches TV at home at weekends . 他周末总是在家看电视。